When we asked what people who owned existing dock products were to do, most of the representatives referred to a 'converter' which supposedly will be made available, either as a standard part of the new iPhone's kit or as an optional accessory. That matches what we've heard so far in other places. However, we also heard from several companies that work closely with Apple, that as the old 30 pin connector only transfers analog audio and the new one will only support digital, a simple converter is not going to work. It would make sense for the new connector not to waste pins on analog signals, but it would also mean a converter would by definition need to come with a built-in D/A converter, just as future docks will have to possess.